REGENXBIO Inc.

RGNX

Exchange: Nasdaq
Industry: Biological Products, (No Diagnostic Substances)
SEC CIK: 0001590877

SEC filings (opens in a new tab)

In the last 90 days, REGENXBIO Inc. insiders filed 1 open-market purchase and 0 sales; 165 institutions reported holding it in 13F filings for Q2 2026, worth $504.6M in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding REGENXBIO Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of RGNX: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	166	2	174	+10
Shares	41.4M	79.6K	41.1M	−135.3K (−0.3%)
Value	$399.2M	$768.0K	$593.1M	+$194.7M (+48.9%)

2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (24)

Institutions that held REGENXBIO Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to RGNX in Q4 2025
Institution	Shares	Value	% of portfolio
GSK plc	271,456	$3.91M	0.49%
Nomura Asset Management International Inc.	149,000	$2.15M	0.00%
Royce & Associates LP	119,038	$1.71M	0.02%
Propel Bio Management, LLC	116,896	$1.68M	1.44%
ACT Capital Management, LLC	82,500	$1.19M	0.96%
D. E. Shaw & Co., Inc.	68,388	$984.8K	0.00%
ExodusPoint Capital Management, LP	55,610	$800.8K	0.01%
Simplify Asset Management Inc.	38,000	$547.2K	0.01%
Victory Capital Management Inc	37,286	$536.9K	0.00%
Vestal Point Capital, LP	34,000	$489.6K	0.02%
Point72 Asset Management, L.P.	33,384	$480.7K	0.00%
Tudor Investment Corp Et Al	24,310	$350.1K	0.00%
Fox Run Management, L.L.C.	17,501	$252.0K	0.04%
Bank of Nova Scotia	17,473	$251.6K	0.00%
Redwood Wealth Management Group, LLC	17,385	$250.3K	0.10%
Headlands Technologies LLC	11,545	$166.2K	0.01%
Bridgefront Capital, LLC	11,042	$159.0K	0.04%
ProShare Advisors LLC	10,750	$154.8K	0.00%
Balyasny Asset Management LLC	10,425	$150.1K	0.00%
Group One Trading, L.P.	804	$11.6K	0.00%
UBS Asset Management Americas Inc	654	$9.42K	0.00%
Spire Wealth Management	500	$7.20K	0.00%
Harbour Investments, Inc.	93	$1.34K	0.00%
SJS Investment Consulting Inc.	52	$749	0.00%

Sold out (14)

Institutions that held REGENXBIO Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of RGNX in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Invenomic Capital Management LP	426,904	$4.12M
Macquarie Group Ltd	149,000	$1.44M
Janney Montgomery Scott LLC	56,029	$541.0K
Engineers Gate Manager LP	29,730	$286.9K
Sherbrooke Park Advisers LLC	13,005	$125.5K
Gsa Capital Partners LLP	10,348	$100.0K
Algert Global LLC	10,040	$96.9K
FNY Investment Advisers, LLC	4,995	$48.0K
Caption Management, LLC	4,123	$39.8K
Aquatic Capital Management LLC	3,806	$36.7K
Foster Dykema Cabot & Partners, LLC	1,946	$18.8K
Advisory Services Network, LLC	200	$1.93K
Principal Securities, Inc.	59	$569
Caitong International Asset Management Co., Ltd	16	$154

Not filed for Q4 2025 yet (2)

Institutions that held REGENXBIO Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding RGNX in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Cubist Systematic Strategies, LLC	55,723	$537.7K
Point72 Asia (Singapore) Pte. Ltd.	23,858	$230.2K